Perfluoroelastomer composition and perfluoroelastomer crosslinked article

Abstract

Provided is a perfluoroelastomer composition comprising (A) a nitrile group-containing perfluoroelastomer, (B) an iodine or bromine-containing perfluoroelastomer not containing a nitrile group, and (C) at least one compound selected from the group consisting of an inorganic nitride and an ammonia-generating compound.

1 . A perfluoroelastomer composition comprising:
 (A) a nitrile group-containing perfluoroelastomer,   (B) an iodine or bromine-containing perfluoroelastomer not containing nitrile group, and   (C) at least one compound selected from the group consisting of an inorganic nitride and an ammonia-generating compound,   wherein a content of the iodine or bromine-containing perfluoroelastomer (B) is 0.5 to 10 parts by mass based on 100 parts by mass of the nitrile group-containing perfluoroelastomer (A), and   wherein the compound (C) is silicon nitride.   
     
     
         2 . A perfluoroelastomer crosslinked product obtained by crosslinking the perfluoroelastomer composition according to  claim 1 . 
     
     
         3 . The perfluoroelastomer crosslinked product according to  claim 2 , having a haze value of 95% or less and a compression set of 25 to 40%. 
     
     
         4 . The perfluoroelastomer crosslinked product according to  claim 2 , having a total light transmittance of 85% or more. 
     
     
         5 . The perfluoroelastomer crosslinked product according to  claim 2 , comprising triazine ring. 
     
     
         6 . The perfluoroelastomer crosslinked product according to  claim 2 , comprising iodine atom or bromine atom. 
     
     
         7 . The perfluoroelastomer crosslinked product according to  claim 2 , comprising silicon atom.